Toner cartridge is designed for use with Lexmark T630, T630dn, T630n, T632, T632dtn, T632dtnf, T632n, T632tn, T634, T634dtn, T634dtnf, T634n, T634tn, X630, X632, X632e, X632s, X634dte and X634e. Superior Lexmark design means precision pairing between printer and cartridge for value, quality and environmental responsibility you can count on. Lexmark Return Program Cartridges are sold at a discount vs. the prices of regular cartridges, in exchange for the customer's agreement to use the cartridge only once and return it only to Lexmark for remanufacturing or recycling. Cartridge yields approximately 5,000 pages.